Surface protection tool for multi-axis additive manufacturing
a multi-axis, additive manufacturing technology, applied in the direction of additive manufacturing, manufacturing tools, manufacturing data acquisition/processing, etc., can solve the problems of stair-stepping effect, accumulation tool of point-based cnc accumulation process, limited size and resolution control, etc., to achieve high resolution and efficiency. the effect of maximizing the effect of machining
Active Publication Date: 2022-04-21
UNIV OF SOUTHERN CALIFORNIA
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AI Technical Summary
Benefits of technology
This approach enables high-speed, high-resolution fabrication of micro-scale features without the stair-stepping effect, achieving resolutions of up to 2.5 μm / pixel and continuous texture formation, significantly improving upon traditional methods.
Problems solved by technology
The traditional additive manufacturing process, however, results in a stair-stepping effect when fabricating the 3D object.
The accumulation tool of the point based CNC accumulation process, however, is limited in size and the amount of resolution control, and thus, cannot be utilized to fabricate micro-features with high resolution and efficiency.
The point-based CNC accumulation process has difficulty in achieving high resolutions, especially for the fabrication of textures with micro-scale features.
Method used
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[0023]Disclosed herein are systems, devices and methods for an additive manufacturing system using computer numerical control (CNC) accumulation. By using CNC accumulation when performing additive manufacturing, the additive manufacturing system reduces, minimizes and / or eliminates the stair-stepping effect that exists in the traditional layer-based approach for additive manufacturing. Thus, the additive manufacturing system can continuously fabricate the textures without using layers.
[0024]Moreover, the additive manufacturing system may use surface-based CNC accumulation, which achieves a higher-resolution fabrication within a shorter time. A surface projection tool (or light guide tool) may apply the surface-based CNC accumulation to accomplish a high-resolution fabrication within shorter time, e.g., by dynamically projecting a pixel array image (e.g., 1920×1080 pixels) while immersed in liquid resin. The surface projection tool uses surface-based CNC accumulation to control light...
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Abstract
Methods, systems, and devices including a light guide tool for multi-axis additive manufacturing. The light guide tool includes a tubular light guide. The tubular light guide may be made from an optically transmissive material enclosed by one or more reflective side walls that are interposed between opposing optically transmissive ends. The light guide tool includes an optical coupling fixed to a first end of the optically transmissive ends of the tubular light guide. The optical coupling is configured to couple to a lens. The light guide tool includes a transparent non-stick coating. The transparent non-stick coating is adhered over a second end of the optically transmissive ends of the tubular light guide. The light guide tool includes a lens. The lens is coupled to the optical coupling and configured to emit a two-dimensional light pattern.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to and is a Divisional of U.S. patent application Ser. No. 15 / 868,891, filed Jan. 11, 2018, titled SURFACE PROJECTION TOOL FOR MULTI-AXIS ADDITIVE MANUFACTURING and claims priority to and the benefit of U.S. Provisional Patent Application No. 62 / 445,679 titled “SURFACE PROJECTION TOOL AND METHOD FOR MULTI-AXIS ADDITIVE MANUFACTURING,” filed on Jan. 12, 2017, both of which are incorporated by reference herein in their entireties.BACKGROUND1. Field[0002]This specification relates to a system, device and / or a method for additive manufacturing using stereolithography apparatus (SLA) materials.2. Description of the Related Art[0003]Additive manufacturing builds three-dimensional (3D) objects by adding layer-upon-layer of material, whether the material is plastic, metal, concrete or other material. Additive manufacturing has numerous applications including 3D printing, rapid prototyping, direct digital manufactu...
Claims
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IPC IPC(8): B29C64/277B29C64/135B33Y50/02B33Y10/00B33Y30/00B29C64/393
CPCB29C64/277B29C64/135B29C64/393B33Y10/00B33Y30/00B33Y50/02
InventorCHEN, YONGLI, XIANGJIA
OwnerUNIV OF SOUTHERN CALIFORNIA